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<head>
    <meta charset="UTF-8">
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    <title>Document</title>
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<body>
    <script>
        let age = 20;
        let name = '房圣博';
        console.log(name+'今年'+age+'岁');
        // 模板字符串
        console.log(`name今年age岁`);
        console.log(`${name}今年${age}岁`);
    </script>
</body>
</html>